skeleton key

n.万能钥匙

sixthly, sixtieth, sixty, sizable, size, size up, sizeable (also sizable), sizing, sizzle, sizzler, skate, skateboard, skateboarder, skateboarding, skater, skating, skating-rink, skedaddle, skein, skeleton, skeptic, skeptical, skepticism, sketch, sketch out, sketch-book, `sketch-pad, sketch-map, sketchily, sketchiness, sketchy, skew, skew-whiff, skewbald, skewer, ski, ski-bob, ski-jump, ski-lift, ski-plane, skid,